Thomas j



(No Model.)

T. J. HART.`v

LUBRIGATOR.

Patented June 25, 1889.

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bhrawys.

N. PETERS. Phmvbtmgmpmr. Washington. D. C.

UNITED STATES PATENT OFFICE.

THOMAS J. HART, OF BUFFALO, NEV YORK, ASSIGNOR TO FELTHOUSEN &

Y SHERVOOD, OF SAME PLACE.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 405,885, dated June 25,1889.

Application filed October 20, 1888. Serial No. 288,641. (No model.)

To @ZZ whom t may concern..-

Be it known that I, THOMAS J. HART, of the city of Buitalo, in thecounty of Erie and State of New York, have invented new and 5 usefulImprovements in Lubricators, of which the following' is a specification.

This invention relates more especially to the class of lubricators oroil-cups which are provided with an internal regulating-valve 1o andwith a transparent drip-chamber, through which the dripping of the oilor other lubricant is visible, and whereby the quantity of oil fed uponthe journal or other part to be lubricated may be observed.

One of the objects of my invention is to provide the lubricator with aseparate cut-oft valve, which is independent of the regulatingvalve, sothat the discharge of oil from the lubricator may be stopped, ifdesired, without disturbing the adjustment of the regulating-valve,thereby avoiding the necessity of readjusting the regulating-valve eachtime upon opening the discharge-passage of the lubricator, which is thecase when the regu- 2 5 lating-valve is used for both purposes.

The invention has the further objects to simplify the construction ofthe lubricator, to construct the drip-chamber in such a manner that theglass thereof can be readily replaced when broken, and to provide the leedopening of the lubricator with a valve which is convenientlymanipulated.

My invention consists to these ends of the improvements which will behereinafter fully 3 5 described, and pointed out in the claims.

Inthe accompanying drawings, Figure l is a side elevation of my improvedlubricator.

Fig. 2 is a sectional elevation thereof. Fig.

3 is a vertical section of the lower portion of the same at right anglesto Figs. l and 2. Fig.

4 is a top plan view of the lubricator. Fig. 5

is a cross-section of the lower portion of the oil-chamber. Fig. 6 is asimilar View of the transparent drip-chamber in line oo, Fig.

Fig. 7 is a cross-section of said chamber in line y y, Fig. 3.

Like letters of. reference refer to like parts in the several figures.

A represents the cylinder forming the oilchamber, which is preferablyconstructed ot glass.

B is the cap applied to the upper end of the cylinder, and B the headclosing the lower end of the cylinder. The cap and head B B are providedwith marginal iianges which overlap the upper and lower ends of thecylinder, as shown. A suitable packing is ar-v ranged between thecylinder and the cap and head.

c is the discharge teat or nozzle formed on 6o the under side of thehead B', and e is the vertical discharge-passage arranged in said teat.

c2 is a lateral passage formed in the head B and communicating at itsinner end with the passage c of the teat and opening with its oppositeend into the oil-chamber.

cl is the upright internal tube, formed on the inner side of the head Bin line with the discharge-passage c and extending through 7o the cap B.The head B and cap B are firmly held against the ends of the cylinder Aby a clamping-nut d applied to an external screw-thread formed at theupper portion of the tube (Z and bearing against the top of the cap B.

e is the regulating-valve, arranged in the upper portion of thedischarge-passage c', and c is the stein thereof, extending upwardlythrough the tube d. The upper portion of 8o the stem e is provided withan external screwthread, which engages with an internal thread formed onthe upper portion of the tube d,- so that by turning the stein in eitherdirection the valve e will be moved toward or from the seat at the upperend of the dischargepassage c. The stem e is provided at its outer endwith a knob or button for turning it, and is firmly held in position,after being adjusted, by a j ain-nut e2 applied to the 9o threadedportion of the stem and bearing against the upper end of the tube d.

f represents a valve-seat formed in the lateral passage c2, and F is aconical cut-oit valve adapted to rest against said seat, so as to close9 5 the passage c2 and prevent the oil from flowing from the oil-chamberinto the vertical discharge-passage o. The stein f of the cutfoi valveextends upwardly through an opening in the cap B, and is provided withan arm er loo lever g for turning it.

f2 is a spiral spring surrounding the valvestem f andinterposed betweenthe cap B and a shoulder on the valve-stem, as shown in Fig. 2. Thisspring tends to d epress the valves'tem andhold the cut-off valveagainst its seat.

g is a transverse pin secured to the valvestem above the cap B andadapted to bear against an inclined face g2 arranged on acircular rimg3, formed on the upper side of the cap B Upon turning the valvestem bymeans of the lever g the pin g rides up the incline g2, therebyelevating the valve-stem, raising the cut-off valve from its seat, andopening the lateral passage c2. The valvestem is held in this Vpositionby the pin g resting upon the fiat upper edge of the rim 3 irection thepin is moved down the incline by the spring f2 and the valve is closed.The vcut-off valve may, however, be raised and lowered by any othersuitable means, if de-` sired.

The cap B is positively held against turning on the cylinder A, so as tokeep the valve Fin line with its seat, by transverse pins h,

secured to the tube d within the cylinderA and engaging in notches h',formed in a depending sleeve h2, arranged on the inner side of the capB, as shown in Fig. 2.

When the lubricator is desired to feed, the cut-off valve F is opened,and the valve e is then regulated to allow the proper quantity of oil toescape Jthrough the passage c. After the valve e is so regulated it isheld in position by tightening the jam-nut e2. When it is desired t-ostop the feed, the cut-off valve is closed, whereby any further escapeof the oil into the passage c is prevented. In this manner the flow canbe stopped without disturbing the adjustment of the regulatingvalve,thus saving the time and trouble of readjusting the regulating-valveafter each stoppage of the feed, which is necessary when said valve isused both for regulating and for shutting off the feed.

I represents the drip-chamber, arranged at the lower end of thelubricator and surrounding the discharge or drip teat c. The dripchamberI is preferably made flat-sided, and is secured to the teat c by meansof a screwthreaded opening i, formed in the top plate i of the chamberand engaging with an external thread formed on the teat c, as clearlyshown in Figs. 2 and 3. The drip-chamber is provided on opposite sideswith openings, which are closed by transparent plates j of glass orother material. The transparent plates j are arranged with their upperends in slots j', formed in the top plate 'i' on opposite sides of theopening z', and their lower ends are seated in grooves j", formed in thebottom of the drip-chamber, as shown in Fig. 3. The upper end of thedrip-chamber bears against the adjacent side of the head B whereby thetransparent plates are confined in the slots j. This formsa simpleconstruction, which permits a broken plate to be Upon turning the stemin the opposite4 readily replaced or a soiled plate tobe-easily cleanedby unscrewing the drip-chamber from the teat c.

Z represents the feed-opening formed in the cap B, through which the oilis introduced into the oil-cup. This opening is closed bya spring-valvem, which is carriedl by a laterally-swinging arm M. The latter ispivoted at its inner end to the cylindrical contracted neck of thescrew-nut d', and is held in place by the head of the nut. The valve mis arranged in a recess at the outer end of the arm M, and"is providedwith an upwardlyprojecting stem fn. The valve-stem fn is arranged in acap fn', formed on the outer end of the arm M `above the valve m. Thelatter is held in a depressed position against its seat by a spiralspring n2, interposed between the valve and the under side of the cap`and surrounding the valve-stem. The cap 'n' incloses the valve-stem andthe spring and forms a convenient handle for manipulating the arm M.Upon shifting the arm M laterally in either direction the valve isremoved from the feed-opening l and the latter is exposed. By thisconstruction the valve is seated and raised from its seat by simplyshifting the arm M. The valve is made somewhat larger than thefeed-opening, so as not to enter the same, and its edges are beveled tofacilitate the lifting of the valve upon shifting the arm. The valve isentirely inclosed by this construction, and dirt, &c., excludedtherefrom.

I claim as my inventionl. In a lubricator, the combination, with theoil-chamber provided with a central discharge-passage c in its bottom,and a lateral discharge-passage c2, forming a communication between theoil-chamber and the central discharge-passage, of a regulating-valvearranged in the central discharge-passage and provided with a valve-stemextending through the top of 'the oil-chamber, whereby the ow of oilfrom the lateral discharge-passage into the central discharge-passage isregulated, and acut-off valve arranged in the lateral discharge-passageand provided with a valvestem extending through the top of theoilchamber on one side of the stem of the regulating-valve, whereby thecommunication between the central discharge-passage and the oil-chambercan be closed without disturbing the position of the regulating-valve,substantially as set forth.

2. The combination, in a lubricator provided with a discharge-passagec', and a lateral passage c2, communicating with said discharge-passage,of an upright tube d, arranged wit-hin the lubricator above the passagec', and provided with an internal screw-thread, a regulating-valve e',arranged within said tube and provided with an external screwthread, anda cutoff valve arranged within the lubricator controlling the lateralpassage c2, and having a stem extending4 through the gap hof thelubricator, substantially as set ort Ioo

3. The combination, with the oil-chamber of the lubricator provided Witha dischargepassage c', and a lateral passage c2, communicating with thesame, of a regulating-valve arranged in said discharge-passage, acut-off valve arranged in the lateral passage c2, and provided with astem extending through the top of the oil-chamber, a spring whereby saidvalve is depressed, an incline arranged at the top of the lubricator,and a pin or projection arranged on said valveestem and adapted to bearagainst said incline, substantially as set forth.

4. The combination, in a lubricator provided in lits top with afeed-opening l, of a laterally-swinging arm M, pivoted to the top of thelubricator and provided on its under side with a recess arranged abovethe opening Z, and a cap n', arranged above said recess,

sleeve h2, having notches h,of the head B',

and the tube d, provided with pins h, engaging in said notches, wherebythe cap is held against turning .on the cylinder A, substantially as setforth.

Vitness my hand this 16th day of October, 1888.

THOMAS J. HART.

Witnesses:

C. F. GEYER, -Y JNO. J. BONNER.

